June 14, 1940
Auschwitz concentration camp started operation after the first 728 Polish prisoners arrived.
June 14, 1966
Pope Paul VI announced the discontinuation of “Index librorum prohibitorum” (English: List of Prohibited Books.)
《禁書目錄》於1559年首度發表，共32修訂版。
*Index of Prohibited Books (1557-1966) - https://sourcebooks.fordham.edu/mod/indexlibrorum.asp
June 14, 1920
Max Weber（韦伯）, the German sociologist, historian, jurist, and political economist, died at age 56.
Reference - https://en.wikipedia.org/wiki/Max_Weber_bibliography